Susumu Umemoto

Title: **Inventor Susumu Umemoto: Innovating in Radiation-Sensitive Polymer Compositions**

Introduction

Susumu Umemoto, an accomplished inventor based in Yokohama, Japan, has made significant contributions to the field of polymer chemistry. His innovative work has earned him a total of two patents, which showcase his expertise in creating advanced radiation-sensitive materials.

Latest Patents

One of Umemoto's notable patents is a **Radiation-sensitive polyamide polymer composition with anthraquinone**. This composition includes a polymer characterized by repeating units containing aromatic or heteroaromatic residues. The composition comprises an organic compound with a radiation-dimerizable or polymerizable olefinic double bond, and an aromatic monoazide compound. This formulation demonstrates enhanced radiation sensitivity across a broad wavelength range, enabling the creation of highly heat-resistant relief patterns ideal for insulating passivation or protective coatings in semiconductor devices.

His other patent, also titled **Radiation sensitive polymer composition**, similarly focuses on a polymer that showcases superior photosensitivity and radiation sensitivity. The incorporation of an aromatic secondary or tertiary amine compound allows for the creation of heat-resistant relief patterns that maintain good mechanical and chemical properties, making them suitable for various applications in semiconductor technology.

Career Highlights

Susumu Umemoto's career is marked by his association with **Toray Industries, Inc.**, a leader in advanced materials. His commitment to research and development has positioned him as a prominent figure in his field, constantly pushing the boundaries of polymer science.

Collaborations

Throughout his career, Umemoto has collaborated with notable peers such as Gentaro Ohbayashi and Hiroo Hiramoto. These collaborations have further enriched his research endeavors, facilitating the creation of innovative polymer compositions that meet the demands of modern technology.

Conclusion

Susumu Umemoto's contributions to the domain of radiation-sensitive polymers underscore his position as a noteworthy inventor. His patents not only highlight his inventive spirit but also reflect the evolving landscape of semiconductor applications. As the industry continues to grow, the impact of inventors like Umemoto will undoubtedly propel further advancements in technology.